Upon losing all of his health, Wukong is healed up to 45% / 50% / 65% / 75% of his maximum health and gains invulnerability for 2 / 3 / 4 / 5 seconds. As a consequence, Wukong loses 50% / 40% / 30% / 25% of his current energy. Wukong, Defy. Source- warframe wiki on losing all health, instead of the standard Bleedout state like other Warframes, Inaros enters an immobile sarcophagus that siphons health from nearby enemies and allies that Inaros aims at. Enemies being siphoned will be pulled towards Inaros, and the siphoned health goes to a meter that when filled, allows Inaros to automatically resurrect himself. Otherwise, he can be revived by other players as normal. However, note that Inaros is still in danger of bleeding to death if there is no enemy or ally nearby to drain health from, or if Inaros is unable to fill his meter before his bleedout time expires. Inaros, Sarcophagus. Source- Warframe Wiki.